Great work. I hope the home doesn't have a loose neutral, I run into them all the time 190 on one leg 40 on the other, lights dim and get real bright, it's kinda cool, pop meter tighten up all is good. Most of the time it is intermittant, fire up big loads and the problem will act up.
ALWAYS check the voltage back to ground of the hot leg that you are going to hook your recovery machine to. Many three phase setups ("three phase high leg delta" have a "stinger" leg that is 208 Volts and not 120 back to ground. There are also many other issues in the electrical panel that can cause one leg to be an abnormally high voltage. Always check before hooking up your machine. A fuse may not have even helped you in this situation as fuses blow from excessive amps, not volts. Remember OHM'S law: In a parallel circut, more volts means less amps on the same load. This is why an appliance on 240 volts would draw less amps than the same appliance on a 208.
I couldn't tell if you pulled wires off the run capacitor when you were doing your testing. You have to isolate the compressor completely. If things don't work out I always go right to the compressor terminals to make sure there is no problem with the wiring which I have seen. you can test a compressor using the wiring if it tests good you don't have to go any farther. if it fails you need to go directly to the compressor terminals to eliminate any problems with wiring. you should have a megameter I have an inexpensive one and it's the most accurate way to test windings so you don't have to blow fuses. Sometimes bad windings in compressors will pass ground test with a ohmmeter because you are testing the windings only with 9 volts DC.
I did isolate everything, I've considered a megohmer but the one I want is $700 if I recall correctly. I'm not interested in the dedicated Supco device. I'd rather have the Fluke 1587
Hey nice Video Rardon! One recommendation I would like to make is to use a Voltage regulator with your cheater cord. In doing that it will prevent any voltage surges or drops therefore preventing any damages to you expensive equipment.
Thank you for such an insightful video! After being charged over $500 for a freon "recharge" of my unit without a technician performing any diagnosicts but who was quick to talk financing on a new coil that would run about 6 grand and after sitting here in the Texas heat after less than 24hrs of less than adequate cooling from the freon "recharge," this video is definitely going to help a single mom during the recession not get screwed again! Thank you!!! I will be demanding a compressor/capacitor test and will be looming over the next technicians shoulder demanding to see OHM output!
You cut the compressor loose but you unsweat the drier, what is wrong with you? Just kidding, I will come to Raleigh Carolina and we will have a discussion that means I will do the talking and you will do the listening about many things. Good Stuff my friend.
i had room to cut the compressor and didn't have room to cut the drier out. wanted to cut both but didn't have enough slack in the ahu to do so. no extra pipe in the barbie van
I've burned up my shop vac like that. I was like damn it runs great. Then it went up in smoke. I had it to a wild 208 leg . Now I double check voltage before putting my cheater
I've had the same happen when someone installed a high leg transformer since they got it at a fire sale. Wreaked havoc on all the stuff plugged into the 120 outlets that were getting 208.
Pretty much never use a cheater cord here (they are probably illegal!) I carry extension cable and just run power from nearest outlet. Few years back maintenance guy at a place we worked at put an extra socket/outlet in the kitchen of a factory, he just tapped into some cables in trunking above the kitchen. The socket kept blowing peoples phone chargers, turns out he had two legs of the three phase power run to the socket so 415volts! Apparently the kettle boiled very quickly!
Technically here in the states, using the grounded "bare copper" would cause the entire building to have the non neutral to become a non safety wire, and it is non shielded if it gets hot, because it is now a current carrying conductor. Use a step down convertor to go from 240 to 120.
Boys and girls - this is what happens when you don't go college. Get that degree! Work inside and make money while enjoying the A/C and coffee at your desk.
depends on the situation, this is one of the few I've cut, it was warranty and it needed to be sealed for return so the extra pipe helps take care of that.
Steven my name is Rich Visco working on trane 19i heat pump have bad high speed compressor. This unit has 2 compressors in it ohmed out compressor and is shorted unit is 14 years old r22 system question change just the 1 compressor or both or would you change out system what is your opinion or what would you do
The discharge muffler had some not so pretty welds...Carrier you now have my permission to go to Mexico :) Stephen your the hardest working tech on YT.
I use cheater cords a lot because sometimes running to an outlet isn't a good option. But we had several schools with equipment rooms full of 480volt WSHP's but not a 120 volt outlet within 150 feet. Had to make an extension cord out of 10-2 romex. Just because someone is an Architect/Engineer doesn't mean they know how things work lol. Good Video Stephen!
Back in High school my dad and I where working at this school and they had a plug that measured 185 volts AC while we were there. ie it was a 208 volt line that on a hot day was 185. ie like the 185/1.73= 107. ie the 120 volts was sagging to 107 volts on a super hot day thus the 208 Y part was actually 185 volts.
Are compressors interchangeable? My condenser is ssx140421cb with compressor ZP31K5E-PFV-830 which has gone bad. I bought part ZP42K5E-PFV-800 as a replacement. Will this fit without any issues or cause damage?
I couldn’t say without finding a reference to the equipment you’re working on. 049 would seem to likely be a 49k btu capacity which wouldn’t be surprising as an option in a 5 ton system. I’ve seen 30k or even 28k compressors in 3 ton units before.
+Stephen rardon I am currently in apt maintenance and want to gain more experience in hvac, however employers are iffy here and when I do find someone hiring it is under 9.00 per hour, I got epa cert and have hands on experience but just not installation side, how could I get in that side, recommendations?
There has been significant discussion on Facebook and RU-vid on this subject and the reason I do it is to keep any contamination from the lineset from getting to the TXV. Outside is easier but doesn't serve much purpose to protect the TXV. It's actually recommended by Carrier to put it near the fan coil aka Air Handler.
+lXOutsidethecomfortzoneFitnessX l I had room to Cut the compressor but no extra piping for the drier. Soon as I cut out the drier my lineset is too short.
you also might want to get yourself a Turbo Torch much Superior to what you're using you can on sweat those connections on those compressors makes your life a lot easier
most of the time there isn't it doesn't hurt anything if you constantly have to cut you're going to screw yourself sooner or later especially on bigger pipe like 1 1/8 - 1 3/8 you won't have room on some of the units.
Most the time in my experience there isn't if you cut the line you're going to be short you're not going to be able to reconnect that's why I install and I'm sure you and everyone else liquid line dryer then you don't have to worry about debris in system I'm sure you've seen it so I buy compressors that have been replaced in the field with no filter driers
+Ben Kuxhouse Don't have to worry about debris since you put a drier in lol. As far as torches, you have way more control with oxy/act, over turbo, and takes way less time when dealing with bigger pipe. Why do you buy bad compressors?
I don't know if you ever use the turbo porch. I have all the tips and I can easily and sweat high temperature fittings on purpose big is 1 3/8 inch unless you run nitrogen through the system while your father and you're going to have oxidation flaking off inside the pipes no matter what. You can either bust your ass running nitrogen through the system or throwing a filter line dryer in the liquid Line run it in the AC first if it's a heat pump and you won't have to worry about it. I've been doing this stuff for 31 years now. Turbo Torch gets things done that oxy acetylene just can't when it comes to soldering pipes
+Eric M it'll pass through the condenser coil you just don't want to hit the metering device. I don't think it's necessary what you're doing but I'm not going to be critical of it then it's extra insurance. I never do it and I'm not even had a problem and 31 years with it. When I see problems is when people don't put liquid line driers in. even if I was running nitrogen I'd still put a liquid line dryer in I'm sure you've seen a lot of cannibalize jobs out there as I have. more than once I've seen massive restrictions because somebody replace the compressor and didn't bother to put in liquid line dryer
another great video, just curious, why do you put the filter drier at the indoor unit, I've always put it at the out door unit. I know it doesn't matter, just curious. really like your torch tip, what size is it?
i put the drier inside because it's designed to catch any trash and if it's at the outlet of the condenser it's not catching anything that might be in the liquid line. Manufacturer said ahu location was their preferred location
Stephen Rardon Are you guys licensed in North Carolina I’m from New Jersey and if there’s no service receptacle when inspector shows up guess what you failed last I checked we all live in the USA governed by the nec
And trust me I’ve been around a long time I learned the hard way burnt up my vacuum pump before there were recovery machines but my other concern is you’re using the grounding conductor for a neutral
I don´t call the acid test wasted... it tells you there is no acid and you don´t have to flush the system...money saved for the customer... the compressor seemed to have some other fault than a burn out
Stephen today in a basement with 3 water to water geos, replacing compressor on one of the units, recovered all the refrigerant, very tight work area, decided to sweat out compressor, and change out liquid line drier, problem is, when I sweated out the suction line, had a rush of residual vapour, well not a lot, but face was 3ft above compressor, eyes watered, I coughed, then co-op student ran lol, I think we all do it, inhaling any burnt refrigerant is never good, any suggestions? Even just a whiff of burnt refrigerants, in a confined space is terrible.
That testo meter is beautiful , I noticed this video is some years old still using that meter ? I use fluke 902 but have been curious about that testo. Thanks for any response dude
I've been the H.V.A.C./R. industry for over 10 years and this is one of the worst examples of a compressor troubleshooting and compressor replacement videos that I've seen on RU-vid. Unfortunately I have witnessed these subpar methods in the feild plenty of times, but I have never seen someone with the ignorance enough to film themselves doing this type of work of cutting corners and skipping critical steps. I suspect that the replacement of his recovery machine greatly affected the time constraints of the "ticket time" afforded to him, but brazing without nitrogen or not sanding and cleaning his copper connections, not mounting the feet of the compressor prior to brazing and then moving the compressor around is laughable, and sloppy. Not testing the compressor terminals directly??? Is lazy work and uncertain. Not applying cooling to the filter drier while installing is ridiculous. And on and on..... bad job and you Sir should know better.
😂😂😂, 10 years huh? Where did you learn your craft? Union shop? I’ve learned what I know the hard way in my 22 years in the trade. I could stand to improve my process I suppose but it was how I was taught to do these sorts of things. I do flow nitrogen though cleaning the joints has never shown to be a problem of enough significance to spend the time on it.
When you're cheating voltage around get yourself an automatic voltage regulator downstream from the cheater and connect your brand new now recovery unit so this will never happen again. Some have multiple outlets so you can use multiple tools at the same time. Some work as transformers/regulators/stabilizers so you can connect both 240 volts legs and properly use the ground instead of combining it with the neutral; this way you'll get both 120 and 240 clean outlets out of your cheater. The only difference is that you'd need an adapter from the cheater to the transformer for the 240 volts... But if you only need it for your 120 volts tools get yourself the APC LE1200 voltage regulator for around $40. Or something more portable if you need it to fit a Veto MB2 for instance. You'll save a trip looking for fuses or arguing about warranty coverage...
I couldn't tell if you pulled wires off the run capacitor when you were doing your testing. You have to isolate the compressor completely. If things don't work out I always go right to the compressor terminals to make sure there is no problem with the wiring which I have seen. you can test a compressor using the wiring if it tests good you don't have to go any farther. if it fails you need to go directly to the compressor terminals to eliminate any problems with wiring. you should have a megameter I have an inexpensive one and it's the most accurate way to test windings so you don't have to blow fuses. Sometimes bad windings in compressors will pass ground test with a ohmmeter because you are testing the windings only with 9 volts DC.
